<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <a href="http://coderblx.gitee.io/blog" target="_blank">
          <img src="http://coderblx.gitee.io/blog/images/head_portrait.jpg" alt="" />
        </a>
        <span>白黎许的后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主体区 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409BFF" :unique-opened="true" :collapse="isCollapse" :collapse-transition="false" :router="true" :default-active="this.$route.path">
          <!-- 一级菜单 -->
          <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单的模板区 -->
            <template slot="title">
              <!-- 图标 -->
              <!-- 动态绑定类名来设置不同图标icon -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{ item.authName }}</span>
            </template>
            <!-- 二级菜单 -->
            <!-- el-menu标签中开启了router模式，以 index 作为 path 进行路由跳转 -->
            <el-menu-item :index="'/home/' + subItem.path" v-for="subItem in item.children" :key="subItem.id">
              <!-- 二级菜单的模板区 -->
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-menu"></i>
                <!-- 文本 -->
                <span>{{ subItem.authName }}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <!--路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: "Home",
  data() {
    return {
      // 左侧菜单数据
      menulist: [],
      iconsObj: {
        125: "el-icon-s-custom",
        103: "el-icon-s-platform",
        101: "el-icon-s-shop",
        102: "el-icon-s-order",
        145: "el-icon-s-marketing",
      },
      // 是否折叠
      isCollapse: false,
    };
  },
  created() {
    this.getMenuList();
  },
  methods: {
    logout() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    // 获取所有的菜单
    async getMenuList() {
      const { data: res } = await this.$http.get("menus");
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg);
      } else {
        this.menulist = res.data;
      }
    },
    // 点击按钮切换菜单的折叠与展开
    toggleCollapse() {
      this.isCollapse = !this.isCollapse;
    },
    // 保存链接的激活状态
  },
};
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
// 头部区域
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 15px;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    a {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      img {
        height: 100%;
        width: 100%;
        border-radius: 50%;
      }
    }
    span {
      margin-left: 15px;
    }
  }
}
// 侧边栏区域

.el-aside {
  background-color: #333744;
  transition: 0.3s all;
  .el-menu {
    border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
